This unusual vintage accessory appears to be a Victorian skirt lifter, also called a dress lifter, hem holder, or porte-jupe.
Women used it to grip the fabric of a long skirt and raise the hem while walking through muddy streets, climbing stairs, dancing, or cycling. A chain or cord connected the device to a belt or waistband, allowing the wearer to lift the skirt without holding it continuously.
These practical accessories became popular during the 19th century.
The correct answer is a Victorian skirt lifter.
